title: Reproducible fabrication of stable small nano Pt with high activity for sensor applications.
abstract: Pt nanoparticles with an average size of 2-3 nm in diameter were reproducibly synthesized by reduction of H₂PtCl₆ solution containing inositol hexaphosphate (IP₆) as the stabilizing agent. Single crystals with Pt(111) faces of the resulting cubic nanoparticles were revealed by the electron diffraction pattern. The PtNPs-IP₆ nanoparticles were used to modify an electrode as a nonenzymatic sensor for H₂O₂ detection, exhibiting a fast response and high sensitivity. A low detection limit of 2.0 × 10⁻⁷ M (S/N = 3) with two linear ranges between 2.4 × 10⁻⁷ and 1.3 × 10⁻³ M (R² = 0.9987) and between 1.3 × 10⁻³ and 1.3 × 10⁻² M (R² = 0.9980) was achieved. The attractive electrochemical performance of PtNPs-IP₆ enables it to be employed as a promising material for the development of Pt-based analytical systems and other applications.
authors.affiliation: Department of Chemistry, Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, People's Republic of China.
authors.forename: Pingping
authors.initials: P
authors.lastname: Ye
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Guo
authors.forename: Guiting
authors.initials: G
authors.lastname: Liu
authors.forename: Huifen
authors.initials: H
authors.lastname: Chen
authors.forename: Yuxia
authors.initials: Y
authors.lastname: Pan
authors.forename: Ying
authors.initials: Y
authors.lastname: Wen
authors.forename: Haifeng
authors.initials: H
authors.lastname: Yang
mesh_terms: D055664:Electrochemical Techniques / Q000295:instrumentation*; D006861:Hydrogen Peroxide / Q000032:analysis*; D057230:Limit of Detection; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010833:Phytic Acid / Q000737:chemistry; D010984:Platinum / Q000737:chemistry*; D015203:Reproducibility of Results
chemical_list: D010984:Platinum; D010833:Phytic Acid; D006861:Hydrogen Peroxide